PEAK6’s MarketAxess Holdings MKTX Stock Holding History

PEAK6’s Portfolio MKTX Stock Details MKTX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	–	Sell	-2,290	Closed	-$378K	–	3048
2026 Q1	$378K	Buy	+2,290	New	+$401K	﹤0.01%	2085
2025 Q3	–	Sell	-295	Closed	-$65.9K	–	3263
2025 Q2	$65.9K	Buy	+295	New	+$64.8K	﹤0.01%	2673

Other funds holding MKTX

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

NRCM

North Reef Capital Management Laguna Beach, California $2.61B AUM 11.5% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

PEAK6's MKTX Position: Q2 2026 in Review

PEAK6 sold out of MarketAxess Holdings (MKTX) in Q2 2026, closing a stake of 2,290 shares — an estimated $378K sold.

PEAK6 first reported a position in MKTX in Q2 2025 and held it in 2 quarters. The position peaked at $378K in Q1 2026. 393 funds tracked by Wall St. Rank hold MKTX as of Q2 2026.

PEAK6 reported no remaining MarketAxess Holdings position as of Q2 2026 after selling out during the quarter.
PEAK6 sold 2,290 MarketAxess Holdings shares in Q2 2026, an estimated $378K.
PEAK6 first reported a position in MarketAxess Holdings in Q2 2025 and held it in 2 quarters.
PEAK6's MarketAxess Holdings position peaked at $378K in Q1 2026.
393 funds tracked by Wall St. Rank held MarketAxess Holdings as of Q2 2026.

Based on PEAK6's 13F filing for Q2 2026, filed 13 Aug 2026.